Part of the reason for this it that the aliens are defeated by a single shot from whichever gun you’re carrying at the time (even the one you start with) but it also helps that their movement doesn’t seem to conform to any repeating patterns. Their appearances are apparently random and their movement is seemingly dependent on your own, so your progress is pretty much just down to your own ability. Accompanying you on your refreshingly-unfrustrating mission are some tunes and sound effects which aren’t too bad, although not especially memorable, but about the only thing I don’t really like about Alien Syndrome is its graphics.

There will always be a few common themes for video game titles. Medieval fantasy role-playing games, secret agent first-person shooters, cartoony platformers are among the most popular. Another brand of home console fun is the kill all the aliens action game. Many titles for the Nintendo Entertainment System tried to capitalize on this key idea, including Star Tropics and Contra. Another contestant in this field was Alien Syndrome, a top-down gunner for one or two players.